Tan, Kim Chwee Daniel
Springer, 2012
eBooks
Murray, Neil, author
Cambridge University Press, 2015
eBooks
Akwasi Asabere-Ameyaw
Sense, 2012
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Hao Xiaoming; Sunanda K. Datta-Ray
Marshall Cavendish, 2006
Buku Teks
edited by John Sears and Pete Sorensen
Routledge Falmer, 2000
Buku Teks